William m



(ModeL) I W. M. BROOKE,

PERMUTATION LOOK. N9. 227,749. I Patented Apr. 29, 1884.

WITNESSE INVENTOR: M

ATTORNEYS.

UNITE STATES PATENT ries.

WILLIAM M. BROOKE, OF- BROOKLYN, NEW YORK, ASSIGNOR OF ONE-THIRD TO JOHN F. SIAS AND LEWIS M. SWASEY, BOTH OF SAME PLACE.

PERMUTATlON-LOCK.

SPECIFICATION forming part of Letters Patent No. 297,749, dated April 29, 1884.

Application, filed January 9, 1884. (ModeL) To all whom it may concern..-

Be it known that I, WILLIAM M. BROOKE, of Brooklyn, Kings county, New York, have invented a new and useful Improvement in Combination-Locks, of which the following is a full, clear, and exact description.

This invention relates to combination-locks suitable for trunks, valises, satchels, and other receptacles or packages, and in which IO internally slotted or notched rings arranged to rotate about a common axis, and having letters, figures, or symbols ontheir peripheral exteriors, are used in connection with a toothed device, so that, accordingly as the rings are I 5 turned to bring their notchesinto or out of line with each other,'provision is made for their engagement with and disengagement from the toothed device,to close or open the look as required. l

The invention consists in a certain combination of a toothed hasp with the combinationrings of a peculiar construction ,and a circular lock-case, whereby the hasp is made to directly lock with the rings, a central pivot or bolt is dispensed with, the case is made to form a bearing for the rings, and other advantages are obtained, the whole forming a cheap and simple combination-lock, substantially as hereinafter described.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 represents a front view of a trunk 3 5 in part having my improved lock applied;

Fig. 2, a top view of the front portion of the body of the trunk in part with the look attached. Fig. 3 is a horizontal section of the same on the line x w, in Fig. 4; Fig. 4, a vertical section on the line 3 y in Fig.1 of the front part of the trunk and lock with itshasp; Fig. 5, a view in perspective of one of the combination-rings of the lock detached; Fig. 6, a face view of a blank from which the case of tl1e lock may be made, and Fig. 7 a longitudinal view of the hasp detached.

A indicates the lid or top, and B the lower portion or body of a trunk in part.

the upper front portion of the body of the trunk, and secured thereto by screws,nails, or rivets. Said case is of cylindrical contour internally, with its axis in a vertical plane when the lock is applied, as shown, to form an outside bearing or support for any number 0f The object of this slot 2) is to provide for the insertion of the finger to manipulate the rings 1) D. A simple mode of constructing this lock-case is to fashion it out of a fiat sheetmetal blank, E, Fig. 6, having its central main portion of greater width than its ends, and notched onopposite sides, as shown at c c, which notched portions are afterward turned over on the ringsD D to form the top and bottom of the case, and the blank bent in direction of its length to giveto its circular interior shape, with slot 1) in front and side rings, d (Z that serve to secure the lock to its place.

The rings D D, which form the combination parts of the lock, and are of a size to fit easy within the circular portion of the case,

have any number of letters, figures, or other which may be a mere dummy to mislead the uninitated, and form a gage or rest for the lower end of the haspconstructed on the upper or one face with a flaring or other suitable-shaped and enlarged recess,c,around the central hole or eye, 8, of the rings,and with a radial slot, f, down through them, arranged to open into the eye of the rings. This construction of the rings D notonly provides for a toothed hasp, Gr, secured to the lid of the trunk, being entered down within or through said rings when the lid is closed, and the rings are so turned as to have their slots f in line with each other and with the hasp, and of the hasp being subsequently locked by turning one or more of the rings out of its above-specified O is the lock-case, inserted in and through] portion; but the recesses e serve to receive the entered teeth 9 of the hasp G, that may be shaped to correspond within them, and so that each ring,when turned,will ride over and lock with the tooth in the next ring beneath, thus doing away with loose intermediate rings or idlers between the combination ones of the lock. The lower ring, D, might be similarly constructed, and the bottom of the lock-case form the rest and gage for the lower end of the hasp,to secure itsproper depth of insertion to engage with the other rings; but it is preferred to make it a false combination-ring,to deceive the unwary and to form a gage for thehasp, as well as to stiffen the lock.

By dispensing with a central spindle for the rings to turn on ,much complication is avoided.

The lock, generally, is one of extreme simplicity, and although it does not provide for changing the combination, excepting by transposing the combination rings one for the other, it will afford ample security against being opened by persons not acquainted with the particular combination necessary to open it.

I am aware that a padlock has been heretofore constructed in whicha series of permutation-disks were arranged vertically in a case with their central key-hole slots in alignment, the said disks being held in the case by a hinged lid, the free end of which was secured by a screw. A pivoted shackle extending across the case was provided in its end with a slot in alignment with those of the disks when the said shackle was in position for being locked. A headed sliding bolt provided with a series of radiating arms was passed through the slots in the shackle and disks, when said disks, which project through a slot in the case, could be turned to lock said sliding bolt in place; and I do not desire to claim, broadly, such construction as of my invention.

Having thus described my invention,I claim as new and desire to secureby Letters Patent-- 1. The lock herein described, consisting of the sheetmetal case provided with a circular chamber, 0, inturned notched portion, 0, on the upper and lower edges of said chamber, securing-flanges d, bent from the opening I) in the case in opposite directions, and a series of horizontally arranged permutation-disks within said chamber,in combination with asuitable hasp, substantially as set forth.

2. A lock-case formed from a sheet-metal blank, E, said blank being provided with the notched central portion, 0, and bent to form the circular chamber 0, of which the notched portion 0 forms the top and bottom,opening b, and flanges d, bent in opposite directions from said opening, substantially as set forth.

VILLIAM M. BROOKE. 

